EP 0179484 A2 19860430 - Current control type driver circuit for brushless motor.
Title (en)
Current control type driver circuit for brushless motor.
Title (de)
Treiberschaltkreis vom stromgeregelten Typ für bürstenlosen Motor.
Title (fr)
Circuit "driver" de type à courant contrÔlé pour moteur sans balais.
Publication
Application
Priority
JP 22395384 A 19841026
Abstract (en)
There is provided a chopping, current-control type driver circuit for brushless motor including a circuit (5, 7) for effecting chopping on the basis of a speed/phase error signal, a changeover circuit (8) for changing over the current direction of Hall devices (9a to 9c) depending upon whether said error signal is positive or negative, switch circuit (11a to 11c) for supplying power to stator coils (12a to 12c) on the basis of the Hall device output, a current detection device (13), and an amplifier (14) serving as an inverting amplifier or a noninverting amplifier depending upon whether the error signal is positive or negative, wherein a negative feedback signal is applied to the error signal in the form of the current value detected by the current detection device in order to control the current flowing through the motor stator.
IPC 1-7
IPC 8 full level
H02P 6/06 (2006.01)
CPC (source: EP US)
H02P 6/06 (2013.01 - EP US)
Designated contracting state (EPC)
DE NL
DOCDB simple family (publication)
EP 0179484 A2 19860430; EP 0179484 A3 19870819; EP 0179484 B1 19910227; DE 3581877 D1 19910404; JP S61106088 A 19860524; US 4631458 A 19861223
DOCDB simple family (application)
EP 85113586 A 19851025; DE 3581877 T 19851025; JP 22395384 A 19841026; US 79134485 A 19851025